(5 Pack)#14130 Marineland O-Ring Cover Seal for Magnum 200, 220, 330 and 350 Canister Filters ( 5 Pack ) #14130 Marineland O-Ring Cover Seal Fits Magnum 200, 220, 330 and 350 Canister Filters Quality O'rings sold by TORK Distributors Save Money, Buy in Bulk..